Evidence for a posttranscriptional effect of retinoic acid on connexin43 gene expression via the 3'-untranslated region

FEBS Letters
A Clairmont, H Sies

Abstract

All-trans retinoic acid (10(-7) M) induces cell-cell communication and the expression of the gap junction protein connexin43 in mouse F9 teratocarcinoma cells. Previous experiments revealed an increase of mRNA but no change in the transcription of connexin43, suggesting a posttranscriptional mechanism responsible for the regulation of connexin43 gene expression. In transient transfection experiments using an expression vector containing the 3'-untranslated region of the connexin43 gene downstream of the luciferase coding sequence driven by the connexin43 promoter we show here that retinoic acid enhances luciferase activity via the connexin43 3'-untranslated region due to altered stability of the mRNA. Thus, retinoic acid is able to influence connexin43 gene expression at the level of mRNA stability via elements located in the 3'-untranslated region.

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Citations

Apr 7, 2000·Brain Research. Brain Research Reviews·R WeilerD I Vaney
Jun 24, 2000·European Journal of Biochemistry·A W ZomerB T Poll-The
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Jan 6, 2000·Archives of Biochemistry and Biophysics·W StahlH Sies
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Nov 26, 2009·Microscopy Research and Technique·Sanny S W ChungDebra J Wolgemuth

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